Finding the Fourth Proportional to 691,197.08, 953,736.54 and 385,206.68
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Solution
The fourth proportional to 691,197.08, 953,736.54 and 385,206.68 is: 531,520.89
Step by Step Solution
- Step 1: Write the proportion equation
691,197.08 : 953,736.54 = 385,206.68 : x - Step 2: Convert to fraction form
691,197.08/953,736.54 = 385,206.68/x - Step 3: Cross multiply
691,197.08x = 953,736.54 × 385,206.68 - Step 4: Simplify right side
691,197.08x = 367,385,686,168.09 - Step 5: Solve for x
x = 367,385,686,168.09/691,197.08 - Step 6: Final answer
x = 531,520.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.